Microstructure modifications and phase transformation in plasma-sprayed WC–Co coatings following post-spray spark plasma sintering

• Main Authors: Li, H., Khor, Khiam Aik, Yu, L. G., Cheang, P.
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2012
• Subjects: DRNTU::Engineering::Materials::Material testing and characterization
• Online Access: https://hdl.handle.net/10356/95601; http://hdl.handle.net/10220/8690
• Institution: Nanyang Technological University

Thermal sprayed tungsten carbide (WC)–cobalt (Co) coatings have been extensively employed as abrasion/wear protective layers. However, carbon loss (decarburization) of WC–Co powders during thermal spraying reduces the efficiency of the coatings against abrasive wear. Post-spray treatment with spark...